Patents
Patents for G06F 13 - Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units (158,002)
01/1988
01/12/1988US4719567 Method and apparatus for limiting bus utilization
01/12/1988US4719565 Interrupt and trap handling in microprogram sequencer
01/12/1988US4719563 Data transmission control device for controlling transfer of large amounts of data between two memory units
01/12/1988US4719459 Signal distribution system switching module
01/12/1988US4719458 Method of data arbitration and collision detection in a data bus
01/12/1988CA1231460A1 Real time data transformation and transmission overlapping device
01/12/1988CA1231459A1 Scannerless message concentrator and communications multiplexer
01/12/1988CA1231458A1 System for controlling transfer of commands between processors
01/07/1988EP0251461A2 Parallel free storage management method and device
01/07/1988EP0251235A2 operator interface servicing module
01/07/1988EP0251234A2 Multiprocessor interrupt level change synchronization apparatus
01/07/1988EP0250698A2 Method for information transmission between independent subscribers of a system via a serial interface, and arrangement for carrying out this method
01/05/1988US4718064 Automatic test system
01/05/1988US4718061 Communications network having bit-mapped refresh cycle
01/05/1988US4718038 Data security device for storing data at a peripheral part of the device during power down thus preventing improper retrieval
01/05/1988US4718006 Data processor system having improved data throughput in a multiprocessor system
01/05/1988CA1231185A1 Multipriority communication system
01/05/1988CA1231179A1 Method and apparatus for protecting computer software utilizing an active coded hardware device
01/05/1988CA1231178A1 Access-arbitration scheme
01/05/1988CA1231166A1 Bus networks for digital data processing systems and modules usable therewith
12/1987
12/30/1987CN87103247A Interface circuitry for communicating by means of messages
12/29/1987US4716583 Verbal computer terminal system
12/29/1987US4716527 Bus converter
12/29/1987US4716526 Multiprocessor system
12/29/1987US4716525 Peripheral controller for coupling data buses having different protocol and transfer rates
12/29/1987US4716523 Multiple port integrated DMA and interrupt controller and arbitrator
12/29/1987US4716522 Microcomputer system with buffer in peripheral storage control
12/23/1987EP0250081A2 Multiple port memory array
12/23/1987EP0249720A2 Shared storage multiprocessors
12/22/1987US4715030 Local area network bridge
12/16/1987EP0249345A2 Data packet shortening method and device
12/16/1987EP0249344A2 Delay management method and device
12/16/1987EP0249116A2 Method for controlling data transfer buffer
12/16/1987EP0249035A2 Adaptive session-level pacing
12/16/1987EP0248992A2 Display terminal
12/16/1987EP0248906A1 Multi-port memory system
12/16/1987EP0248805A1 Method and means at a system for transmission of information.
12/16/1987EP0120889B1 Direct memory access peripheral unit controller
12/16/1987CN87103936A Control method and system for terminal state
12/09/1987EP0248508A2 Computer network system
12/09/1987CN87103748A Data processing system useing address mapping
12/09/1987CN87102175A Apparatus and method for responding to aborted signal exchange between subsystem in data processing system
12/08/1987US4712190 Self-timed random access memory chip
12/08/1987US4712176 Serial channel interface with method and apparatus for handling data streaming and data interlocked modes of data transfer
12/03/1987WO1987007459A1 Communication protocol for a network
12/03/1987WO1987007409A1 Bus mediation system
12/03/1987WO1987007408A1 Information transfer method and arrangement
12/03/1987WO1987007405A1 Easily installable and easily expandable electromechanical memory assembly
12/02/1987EP0247605A2 System management apparatus for a multiprocessor system
12/02/1987EP0247317A2 Apparatus and method for efficiently transferring data between a high speed channel and a low speed I/O device
12/02/1987EP0247030A1 Connector interface
12/01/1987US4710935 Data transfer system
12/01/1987US4710893 High speed instrument bus
12/01/1987US4710868 Interconnect scheme for shared memory local networks
12/01/1987CA1229930A1 High speed data transmission system
11/1987
11/25/1987EP0246887A2 Pseudo-status signal generator
11/25/1987EP0246724A2 Chain configured interface bus system and a communication arrangement for use therein
11/25/1987EP0246666A2 Serial data bus for different modes of operation (SCI, SPI and buffered SPI) and methods for a serial peripheral interface in a serial data bus
11/24/1987US4709364 Network priority determining method
11/24/1987US4709347 Method and apparatus for synchronizing the timing subsystems of the physical modules of a local area network
11/24/1987US4709329 Input/output device controller for a data processing system
11/24/1987US4709328 Composite data-processing system using multiple standalone processing systems
11/19/1987WO1987007054A1 Universal programmable counter/timer and address register module
11/19/1987EP0246168A1 Insertion device for the independent connection of auxiliary memory units to a data processing system
11/19/1987EP0245591A2 Method and apparatus for transferring information into electronic systems
11/17/1987US4707834 Computer-based instrument system
11/17/1987US4707833 Fault-compensating digital information transfer apparatus
11/17/1987US4707803 Emulator for computer system input-output adapters
11/17/1987US4707782 Method for effecting one timer interrupt for multiple port communication
11/17/1987US4707781 For effecting communication between sources generating READ requests
11/17/1987US4707693 Through-traffic priority protocol in a communications system
11/17/1987CA1229422A1 Interconnect scheme for shared memory local networks
11/17/1987CA1229421A1 Shared memory multiprocessor system
11/17/1987CA1229419A1 Slave-type interface circuit operating with a series bus
11/12/1987DE3615345A1 Electronic control computer with special configuration
11/11/1987EP0245029A2 High speed memory systems
11/11/1987EP0244625A1 Data base processor and its method of operation
11/11/1987EP0244544A1 Very high speed line adapter for a communication controller
11/11/1987EP0244540A2 Write request buffering apparatus
11/10/1987US4706247 Data transmission apparatus
11/10/1987US4706221 Refreshing of dynamic RAM
11/10/1987US4706214 Interface circuit for programmed controller
11/10/1987US4706190 Retry mechanism for releasing control of a communications path in digital computer system
11/10/1987US4706082 Serial data bus for intermodule data communications
11/10/1987CA1229183A1 Input/output multiplexer-demultiplexer communications channel
11/10/1987CA1229137A1 Speed independent selector switch employing m-out-of- n codes
11/05/1987WO1987006740A1 Method and device for transferring signals between modules of an electronic unit
11/05/1987WO1987006739A1 Data storage and transfer apparatus
11/03/1987US4704606 Variable length packet switching system
11/03/1987CA1228930A1 Method and apparatus for detecting synchronous or asynchronous data transmission
10/1987
10/29/1987DE3614208A1 Arrangement for interference-free separation between power output devices and bus system
10/28/1987EP0243189A1 Data storage and transfer apparatus
10/28/1987EP0242953A1 Multiplex system
10/28/1987EP0242882A2 Storage control method and apparatus
10/28/1987EP0242879A2 Data processor with wait control allowing high speed access
10/28/1987EP0242634A2 Byte count handling in serial channel extender with buffering for data pre-fetch
10/27/1987US4703473 Serial network architecture for user oriented devices
10/27/1987US4703451 Data relay system
10/27/1987US4703449 Interrupt driven multi-buffer DMA circuit for enabling continuous sequential data transfers
10/27/1987US4703420 Data processing system